From nobody Sun Nov 24 08:34:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1725991271; cv=none; d=zohomail.com; s=zohoarc; b=jstyUG9RBeUItUjC/yh0m2EjWv+qnSMw/wpmvXdZXToaROzuvQDtT8Z2L3gZxHkO0HbBDF4nlYGmDotNhT67G5O7j+abgsricDMaTd677JsbaFicrxsjgHLBrgt4zy0V1hodZAgwEIUtlvdlSULZ2/5Ztwpi6PvTRUmXGwPWI6o= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1725991271; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=X5R09U0K+B6OvKndHb6tTh1WVlqgBDrmUY+WamsZLu4=; b=jVbA9yLP6o0evEBzo5yIqfBE2de0DDO8BtQQ+Om+A+O9mF9qJFRSdFgYTI35AbEQZZ4N0YFubQIE9shYwiCvOfGHw/YlgULU1jVtdeR2mWYrl+qix/yYCmjLU/JcKDfabnIfaUOt6h0l1L8BrW85gYry5BFJUV3Xyr56aOpDUws= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 172599127175277.32740777918991; Tue, 10 Sep 2024 11:01:11 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1so58d-0005fk-6j; Tue, 10 Sep 2024 13:58:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1so58S-0004zL-TE for qemu-devel@nongnu.org; Tue, 10 Sep 2024 13:58:42 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1so58O-0006OA-Mn for qemu-devel@nongnu.org; Tue, 10 Sep 2024 13:58:39 -0400 Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-463-6Ylr_Q1_OamtqObnmwMlHg-1; Tue, 10 Sep 2024 13:58:29 -0400 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C428119560B5; Tue, 10 Sep 2024 17:58:27 +0000 (UTC) Received: from t14s.redhat.com (unknown [10.22.32.182]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 24EB519560AD; Tue, 10 Sep 2024 17:58:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1725991114; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=X5R09U0K+B6OvKndHb6tTh1WVlqgBDrmUY+WamsZLu4=; b=N/GgTNb2i9/Pfp+Nk2UnwII7znfux0sJtTXKpzKApvb6kBDCdoxcJXgVmzuBmJ/+7R5xiA sSaOWMIFnSXBXPnzc+3JScG3Mtf78lbl6Mnr/BGzjP8YIOEDv2/tFoqegzMfcE7vo62djT sB8IZuy93Ywne7E+HmpUGLlHH62WU0M= X-MC-Unique: 6Ylr_Q1_OamtqObnmwMlHg-1 From: David Hildenbrand To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, David Hildenbrand , Paolo Bonzini , Thomas Huth , Halil Pasic , Christian Borntraeger , Eric Farman , Richard Henderson , Ilya Leoshkevich , Janosch Frank , "Michael S. Tsirkin" , Cornelia Huck Subject: [PATCH v1 02/14] s390x/s390-virtio-hcall: remove hypercall registration mechanism Date: Tue, 10 Sep 2024 19:57:57 +0200 Message-ID: <20240910175809.2135596-3-david@redhat.com> In-Reply-To: <20240910175809.2135596-1-david@redhat.com> References: <20240910175809.2135596-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.145, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1725991272294116600 Content-Type: text/plain; charset="utf-8" Nowadays, we only have a single machine type in QEMU, everything is based on virtio-ccw and the traditional virtio machine does no longer exist. No need to dynamically register diag500 handlers. Move the two existing handlers into s390-virtio-hcall.c. Signed-off-by: David Hildenbrand Reviewed-by: Thomas Huth --- hw/s390x/s390-virtio-ccw.c | 58 -------------------------------- hw/s390x/s390-virtio-hcall.c | 65 +++++++++++++++++++++++++++--------- hw/s390x/s390-virtio-hcall.h | 2 -- 3 files changed, 49 insertions(+), 76 deletions(-) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index e30cf0a2a1..57c95786f6 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -16,11 +16,8 @@ #include "exec/ram_addr.h" #include "exec/confidential-guest-support.h" #include "hw/boards.h" -#include "hw/s390x/s390-virtio-hcall.h" #include "hw/s390x/sclp.h" #include "hw/s390x/s390_flic.h" -#include "hw/s390x/ioinst.h" -#include "hw/s390x/css.h" #include "virtio-ccw.h" #include "qemu/config-file.h" #include "qemu/ctype.h" @@ -124,58 +121,6 @@ static void subsystem_reset(void) } } =20 -static int virtio_ccw_hcall_notify(const uint64_t *args) -{ - uint64_t subch_id =3D args[0]; - uint64_t data =3D args[1]; - SubchDev *sch; - VirtIODevice *vdev; - int cssid, ssid, schid, m; - uint16_t vq_idx =3D data; - - if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid))= { - return -EINVAL; - } - sch =3D css_find_subch(m, cssid, ssid, schid); - if (!sch || !css_subch_visible(sch)) { - return -EINVAL; - } - - vdev =3D virtio_ccw_get_vdev(sch); - if (vq_idx >=3D VIRTIO_QUEUE_MAX || !virtio_queue_get_num(vdev, vq_idx= )) { - return -EINVAL; - } - - if (virtio_vdev_has_feature(vdev, VIRTIO_F_NOTIFICATION_DATA)) { - virtio_queue_set_shadow_avail_idx(virtio_get_queue(vdev, vq_idx), - (data >> 16) & 0xFFFF); - } - - virtio_queue_notify(vdev, vq_idx); - return 0; -} - -static int virtio_ccw_hcall_early_printk(const uint64_t *args) -{ - uint64_t mem =3D args[0]; - MachineState *ms =3D MACHINE(qdev_get_machine()); - - if (mem < ms->ram_size) { - /* Early printk */ - return 0; - } - return -EINVAL; -} - -static void virtio_ccw_register_hcalls(void) -{ - s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, - virtio_ccw_hcall_notify); - /* Tolerate early printk. */ - s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, - virtio_ccw_hcall_early_printk); -} - static void s390_memory_init(MemoryRegion *ram) { MemoryRegion *sysmem =3D get_system_memory(); @@ -302,9 +247,6 @@ static void ccw_init(MachineState *machine) OBJECT(dev)); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); =20 - /* register hypercalls */ - virtio_ccw_register_hcalls(); - s390_enable_css_support(s390_cpu_addr2state(0)); =20 ret =3D css_create_css_image(VIRTUAL_CSSID, true); diff --git a/hw/s390x/s390-virtio-hcall.c b/hw/s390x/s390-virtio-hcall.c index ec7cf8beb3..ca49e3cd22 100644 --- a/hw/s390x/s390-virtio-hcall.c +++ b/hw/s390x/s390-virtio-hcall.c @@ -11,31 +11,64 @@ =20 #include "qemu/osdep.h" #include "cpu.h" +#include "hw/boards.h" #include "hw/s390x/s390-virtio-hcall.h" +#include "hw/s390x/ioinst.h" +#include "hw/s390x/css.h" +#include "virtio-ccw.h" =20 -#define MAX_DIAG_SUBCODES 255 +static int handle_virtio_notify(uint64_t mem) +{ + MachineState *ms =3D MACHINE(qdev_get_machine()); =20 -static s390_virtio_fn s390_diag500_table[MAX_DIAG_SUBCODES]; + if (mem < ms->ram_size) { + /* Early printk */ + return 0; + } + return -EINVAL; +} =20 -void s390_register_virtio_hypercall(uint64_t code, s390_virtio_fn fn) +static int handle_virtio_ccw_notify(uint64_t subch_id, uint64_t data) { - assert(code < MAX_DIAG_SUBCODES); - assert(!s390_diag500_table[code]); + SubchDev *sch; + VirtIODevice *vdev; + int cssid, ssid, schid, m; + uint16_t vq_idx =3D data; + + if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid))= { + return -EINVAL; + } + sch =3D css_find_subch(m, cssid, ssid, schid); + if (!sch || !css_subch_visible(sch)) { + return -EINVAL; + } =20 - s390_diag500_table[code] =3D fn; + vdev =3D virtio_ccw_get_vdev(sch); + if (vq_idx >=3D VIRTIO_QUEUE_MAX || !virtio_queue_get_num(vdev, vq_idx= )) { + return -EINVAL; + } + + if (virtio_vdev_has_feature(vdev, VIRTIO_F_NOTIFICATION_DATA)) { + virtio_queue_set_shadow_avail_idx(virtio_get_queue(vdev, vq_idx), + (data >> 16) & 0xFFFF); + } + + virtio_queue_notify(vdev, vq_idx); + return 0; } =20 int s390_virtio_hypercall(CPUS390XState *env) { - s390_virtio_fn fn; - - if (env->regs[1] < MAX_DIAG_SUBCODES) { - fn =3D s390_diag500_table[env->regs[1]]; - if (fn) { - env->regs[2] =3D fn(&env->regs[2]); - return 0; - } - } + const uint64_t subcode =3D env->regs[1]; =20 - return -EINVAL; + switch (subcode) { + case KVM_S390_VIRTIO_NOTIFY: + env->regs[2] =3D handle_virtio_notify(env->regs[2]); + return 0; + case KVM_S390_VIRTIO_CCW_NOTIFY: + env->regs[2] =3D handle_virtio_ccw_notify(env->regs[2], env->regs[= 3]); + return 0; + default: + return -EINVAL; + } } diff --git a/hw/s390x/s390-virtio-hcall.h b/hw/s390x/s390-virtio-hcall.h index 3ae6d6ae3a..3d9fe147d2 100644 --- a/hw/s390x/s390-virtio-hcall.h +++ b/hw/s390x/s390-virtio-hcall.h @@ -18,8 +18,6 @@ /* The only thing that we need from the old kvm_virtio.h file */ #define KVM_S390_VIRTIO_NOTIFY 0 =20 -typedef int (*s390_virtio_fn)(const uint64_t *args); -void s390_register_virtio_hypercall(uint64_t code, s390_virtio_fn fn); int s390_virtio_hypercall(CPUS390XState *env); =20 #endif /* HW_S390_VIRTIO_HCALL_H */ --=20 2.46.0